<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <link rel="stylesheet" href="200.css">
    <link rel="stylesheet" type="text/css" href="100.css" media="screen and (max-width:700px)"/>
</head>

<body>
    <div class="contain">
        <div class="left">
            <img src="github (5).svg" alt="">
            <div class="child">Why github?</div>
        </div>
        <div class="center">
            <div class="child">Team</div>
            <div class="child">Enterprise</div>
            
        </div>
        <div class="right">
            <div>Sing in</div>
            <button class="button">Sign up</button>
        </div>
        <input type="text" class="input">
    </div>
    
</body>

</html>